Bilge-pump for motor-boats.



Y w. E. LOWELL.

BILGE PUMP FOR MOTOR BOATS.

APPLICATION FILED APR. 9. 19u.

` 'lggm Y Pmnted Jun@ LL, 1918.

2 SHEETS-SHEET l.

IM/Damm@ W' O we Z. witness ttoznc 145 W. E. LOWELL.

I BILGE PUMP FOR MOTOR BOATS.

APPLICATION FILED APR. 9. I9I7.

l ,269.29m Patented June I1, 1918,

2 SHEETS-SHEET 2.

/ UZELoa/CZZ.

l waLzrEnnLoWELL, or NEW YORK, n. Y.

Befitxknown that I,WAM1ER-";E.QLQNYEILLM. oitizengmf .the United@States,4 residing at' News York, ,inutile-:.1 county of ,New ffonk,v

Statezof `New` York', have invented pertain new and ,useful Improvements in Bilge- Ffumpsfifor vIMotoroats and i il@ do i lielfloy declare; the: follawingto beata: fullpclear, and l exactvidescription; Ote the invent1on,isuoh..as Will enablefothersi skilled; in` the .artftoi` which itappfertains; to snake; and use; theasame.

i 'librisinventionl relatesato new `and@useful inipnovementsnini p ,uJnps-,iu and git. pertains' more part-icalarlyu` to pumps employed: `for discharging bilgeuwatervfrom the; bllgezof vessels)- While the present embodiment of. my in:` ventiorr is` disclosed-.tas axbilge` ,water-L pump fonivessels; my: primary object` is toprovide a; pumpf :stnucture i and an ,operating meansv therefor: which may-abe `iu'seds.:in anyv connes tioniilnrveltich it :mayi be desirable to: employ it,1 aA speciali-object; of. the:y invention isJ I torpnovidelaanovel mechanism ifor "operating theI4 pump through thefconfversion ofl` rotary motion.;` to reciprocating: motion, which. operatingzf means: may beused insanyeconne-` tionx-infsvvhich 1suchi conversion ofy motion; is

' `desiredi An object of the particular embodimentA of'-1;iny-.` invention; which i is @disclosed iin this application `istofprovide zebilgerwaten pump, sortonstmicted` that. it; may bedinectly op eratedlfromlany revolving.: part f of the -propeiling. mechanism oiia1 vessel. y' i -An'othen :object :is: `tolA provide ai construe tion facilitating the installation oftthepump and,anxadditionaliobject isto providefineans by Whiohta plurality ofpumps may bel .op-Y eratedi` w o furtheri. `objeet of the: invention i is toi providea biilgeiWater.l pump Whichvmay be operatedy front 1 the propeller shaft. of the` i vessela i fA-f further; object. off: .the` invention` is .toi

pnovide adjustablemeans: for supporting fthe pump to provide for proper positioning thereof.v y

A further object of the invention-.visto providenovel '.Alneansi .:Eor operating the pump.

Asvfurther objectnof the invention: isto providewmeanswby f vvhieh ya plurality. of.

pumps.mayl ,be operated;`

' reference character jiaILe'nLrUMr .Fon lMoron-Boers.

specifi-cation of Letters'ratent.- pmtmfed Jun@ 1L pg appneanonmeaAprile; 1917. serial No. leones.

Referring: to the drawings,

Figure l, is atop plan,

Fig. 2, is asectionallview on the line 2-2 olf-Fig. i 1

Fig. 3, is a side elevational View,

Fig. r4, isi an enlarged detail sectional view of, the cam member, in its operative position,

Fig. 5, is an enlarged detail sectional View of` the cam member in its inoperative position,

Fig. 6.is a top plan of arnodiied4 form of theA invention; and,

Fig, 7',J is an endview partly broken' of the modified` form. of the invention.-

In the preferred for-1n of the invention the tandem type of pumpisemployed, thefoylinders of` said pump being designated by the 15` and the pistons thereof being` designated by the character 16, said pistons 16 single piece of material the center portion 1&7 of Which is preferablyrectangular and isz-provided With a pintle or the like projection 18 on which ismounted a roller. 19, the purpose: ot which Willibe hereinafter set forth. i Y

@Each of the punipcylindersl15is pio vidediwith a. header or chamber 20 and leading into each of :saidnheadersor chambers 2O is a pipe 21 which is extended into the bilge-of. thei boatto which the device is attachedl ,'Ehesefpipes--21 form the intakes of their respective pumpingvcylinders. Extending fronithefheaders. or. Water cha-1nbers`20 in .plane-.atl right angles to the intake pipes 21 aredis'charge pipes 22iiv-hich are connected W-ith a common outlet23 by means of a' pipe-2%, ,it being understood that the outletnfpipe' 23 isacilapted.` to discharge the Water ronrthe pipe 24e` overboard of the vessel. The pipes 21.and-22'` are provided with suitable valves23 and 24 respectively to permitfof the ingress.` ofvvater to the cylinders fromtheinta-ke pipes 21 and to prevent the discharge of Water.` through said pipes, and toiperinit otV ther discharge ot Water through the pipes 22` but prevent the ingress `of Water through.` said pipes 22. In the drawings,v these valves are illustrated as being ofi the. adjustable check valve type.

The. reference character 25 designates the propellershaft of the vessel, and secured thereto/in spaced relationare a pluralityr of away tween the collars 26 for aiding in support..

ing the pumps. This two part bearing comprises a right angular cutout portion 28 and a plate 29 each of which is provided with a substantially semicircular bearing face and when saidplate `29 is secured to' the extension 27 of the plates 31 it will be seen that a circular bearing for shaft 25\ is formed.

The opposite end of each of the headers is provided with a perforation 32, and passing through said perforations are rods 33 the lower ends of which are rigidly connected to plates 34 by means of which they"l are suitably secured to the hull of the vessel.

When the bearing members have been se cured in position around the shaft, the pump cylinders are positioned so that they lie in a horizontal plane, whereupon set screws 35 are screwed up into engagement with the rods 33. From the foregoing it will be seen that the pumps are supported at one side by the propeller shaft 25 and at the other side by the rods 33.

Secured to the shaft 25 in such a manner that it rotates therewith is a cam member 36 which is provided with a cylindrical wardly thereof and slidably mounted on the propeller shaft 25 for movement toward andL away from the member 36 is a cam member 37 which is hollow in form as illustrated and is adapted for movement longitudinally on the shaft to a position where it will receive the flange A of the cam member 36,as shown. The cam member 37 is provided with projecting bolts or the like 38 which pass through openings 39 in the web 40 of the cam member 36 and by this arrangement the cam member 37 is caused to operate with the cam member 36. The longitudinal movement of the cam member 37 is limited owing to the heads 41 of the bolts 38 engaging the web 39 of the cam member 36. The cam member 37 is provided with a hub or slight extension 43 and pivotally secured to said hub are links 44 to which are pivotally secured the links 45 which in turn are pivotally secured to a collar 46 which surrounds the shaft 25 and is secured thereto by means of set screw or the like 47. Slidably mounted on said links 44 and 45 is a collar 48 which is adapted to inclose the said links as shown in Fig. 4 to prevent the same from buckling on their pivots 49 as shown in Fig. 5, and pivoted as at 50 is a lever 5l which is provided with forked end 52 by which the collar 48 is moved longitudinally iange A extending beyond its cam face in-` on the propeller shaft intoA and out of engagement with said links .44 and 45.

When the parts are in the position shown `in Fig.` 4, the flangeA of the cam member 36 is received within the cam member 37 70 and the cam faces of the two members provide a continuous cam slot 53 in which the roller 19 carried by the pintle 18 is adapted to operate and itis apparent that upon rota-` tion of theshaft. the cam slot 53 causes a reciprocation of the pump pistons 16 within their cylinders 415. thus setting upy the pumping operation." If now the Vparts be moved to the position-shown in Figuit will be seen that the collari48. is disengaged with thelinks 44 and `45 and saidy links are freel to rock about their pivots `permitting of longitudinal move1nent.-along the shaft of the cam member 37. With thefparts in this position the camslot 53isof such d-e mension that neither of its wallstwill engage the roller 19 carried by the pintle .18 and therefore no reciprocationof the pistons 16 `is had,` what may be termed the highv points of `the-two cam surfaces having been 9o brought into planes spaced? to an 'extent greater than the dimension of the roller 19 transversely of the slot. i Hw 5.2

i y In the modied form, aztwin pump isused, the pistons 16 of whichoperate in the cylinders` 15',Y and said cylinders 15.` arecconnected bymeansl ofa header onthe like 20. Projecting from each of the cylinders 15 is an intake pipe 21 there being. an intake pipe for each pump cylinder, and `extending' from; the header20 isa dischargepipe 21. The intake i pipes .21 i are f each` provided. with` valves 23', and theoutlet pipe 22:is:provideda with fa: valve 24 by whichfthep'assage of water through the pump cylinders iscon-` trolled.-` i w In this form of invention,the pump cylinders are provided with notchesO in which bearing blocks 61 are supported whichflatter, surround the propeller shaft r.25"and thev header isprovided with apairofV spaced openings or perforations 32 through which `l.he.r )ds"33 extendafor the purpose u of ad"-` justment,` and said cylindersare retained in theiradjustedpositionwwfith respect to 115 the rods by means of the set screws 355;` lIn this form of the invention each-of the pistons 16 is provided with. a pintle 18 on whichv ismounted 1a roller 19 which. `is adapted to operate in the cam slot 35 of the two mem- 120 bers 36 and 37 which-areofthe same type as those in the preferredfornr of the invention. l .s I

Having thus described the invention, what is.claimed,.lis: l;

A bilge water pump support comprising in combination with a propeller shaftywa plurality of vertically extending standards, a pluralityiof pumping cylinders,` bearings carried by the cylinders and embracingthe 130 propeller shaft for supporting one side of In testimony whereof I afix my signature the pump, said cylinders hbeing prpvided in the presence of two Witnesses.

with means for engaging t e vertical eX- tending supports to support the otheryside WALTER E' LWELL' 5 of the pump, pistons operating in the cyl- Witnesses:

inders, and means carried by the shaft for HOWARD L. POWELL,

operating said pump pistons. G. M. SUNDHEIM.

Copies of this patent may heobtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

